<!DOCTYPE html>
<!-- saved from url=(0080)http://www.zhangyunling.com/study/slideUpDownRefresh/version_1/iscroll-test.html -->
<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
<title>slideUpDownRefresh</title>
<link rel="stylesheet" type="text/css" href="slideUpDownRefresh_files/bootstrap.css">
<link rel="stylesheet" type="text/css" href="slideUpDownRefresh_files/bootstrap-theme.css">
<link rel="stylesheet" type="text/css" href="slideUpDownRefresh_files/iscroll.css">
</head>
<body onload="loaded()">
<div id="wrapper">
	<div id="scroller">
		<div id="scroller-pullDown">
			<span id="down-icon" class="icon-double-angle-down pull-down-icon"></span>
			<span id="pullDown-msg" class="pull-down-msg">下拉刷新</span>
		</div>
		<div id="scroller-content">
			<ul>
				<li>Pretty row 1</li>
				<li>Pretty row 2</li>
				<li>Pretty row 3</li>
				<li>Pretty row 4</li>
				<li>Pretty row 5</li>
				<li>Pretty row 6</li>
				<li>Pretty row 7</li>
				<li>Pretty row 8</li>
				<li>Pretty row 9</li>
				<li>Pretty row 10</li>
				<li>Pretty row 11</li>
				<li>Pretty row 12</li>
				<li>Pretty row 13</li>
				<li>Pretty row 14</li>
				<li>Pretty row 15</li>
				<li>Pretty row 16</li>
				<li>Pretty row 17</li>
				<li>Pretty row 18</li>
				<li>Pretty row 19</li>
				<li>Pretty row 20</li>
				<li>Pretty row 21</li>
				<li>Pretty row 22</li>
				<li>Pretty row 23</li>
				<li>Pretty row 24</li>
				<li>Pretty row 25</li>
				<li>Pretty row 26</li>
				<li>Pretty row 27</li>
				<li>Pretty row 28</li>
				<li>Pretty row 29</li>
				<li>Pretty row 30</li>
				<li>Pretty row 31</li>
				<li>Pretty row 32</li>
				<li>Pretty row 33</li>
				<li>Pretty row 34</li>
				<li>Pretty row 35</li>
				<li>Pretty row 36</li>
				<li>Pretty row 37</li>
				<li>Pretty row 38</li>
				<li>Pretty row 39</li>
				<li>Pretty row 40</li>
				<li>Pretty row 41</li>
				<li>Pretty row 42</li>
				<li>Pretty row 43</li>
				<li>Pretty row 44</li>
				<li>Pretty row 45</li>
				<li>Pretty row 46</li>
				<li>Pretty row 47</li>
				<li>Pretty row 48</li>
				<li>Pretty row 49</li>
				<li>Pretty row 50</li>
			</ul>
		</div>
		<div id="scroller-pullUp">
			<span id="up-icon" class="icon-double-angle-up pull-up-icon"></span>
			<span id="pullUp-msg" class="pull-up-msg">上拉加载</span>
		</div>
	</div>
</div>

<script type="text/javascript" src="slideUpDownRefresh_files/jquery.min.js"></script>
<script type="text/javascript" src="slideUpDownRefresh_files/iscroll.js"></script>
<script type="text/javascript">
function loaded () {
	var myScroll,
		upIcon = $("#up-icon"),
		downIcon = $("#down-icon");
		
	myScroll = new IScroll('#wrapper', { probeType: 3, mouseWheel: true });
	
	myScroll.on("scroll",function(){
		var y = this.y,
			maxY = this.maxScrollY - y,
			downHasClass = downIcon.hasClass("reverse_icon"),
			upHasClass = upIcon.hasClass("reverse_icon");
		
		if(y >= 40){
			!downHasClass && downIcon.addClass("reverse_icon");
			return "";
		}else if(y < 40 && y > 0){
			downHasClass && downIcon.removeClass("reverse_icon");
			return "";
		}
		
		if(maxY >= 40){
			!upHasClass && upIcon.addClass("reverse_icon");
			return "";
		}else if(maxY < 40 && maxY >=0){
			upHasClass && upIcon.removeClass("reverse_icon");
			return "";
		}
	});
	
	myScroll.on("slideDown",function(){
		if(this.y > 40){
			alert("slideDown");
			upIcon.removeClass("reverse_icon")
		}
	});
	
	myScroll.on("slideUp",function(){
		if(this.maxScrollY - this.y > 40){
			alert("slideUp");
			upIcon.removeClass("reverse_icon")
		}
	});
}

</script>
</body></html>